Resurgence refers to a behavioral process in which a recent response is extinguished (or reinforcement conditions worsen) and a previously extinguished response recurs. In previous research, resurgence has been reliably produced when the resurgence procedure is repeated. Changes in the degree of increase of the resurging response across iterations of the procedure have been inconsistent, however, with some studies showing increases and some showing no changes or decreases in resurgence magnitude. The present study examined the nature of resurgence across repeated iterations of the conventional resurgence procedure by exposing four pigeons to the resurgence procedure six times in succession. In the first condition of the resurgence procedure, pecks on one key (e.g., the left) were reinforced under a variable-interval (VI) 30-s schedule. In the second condition pecks on that key were extinguished, and pecks on another key (e.g., the right) were reinforced under the same schedule. In the final condition there were no programmed consequences for either response. Resurgence was observed in 21 of 24 opportunities (87.5%). Iteration-over-iteration increases in resurgence were observed in 15 of 20 opportunities (75.0%), and this increase was found to be statistically significant. These findings demonstrate that, under certain conditions, resurgence generally increases in magnitude with repeated exposure to the procedures that generate it.

复苏是指一种行为过程，其中最近的反应消失（或强化条件恶化）并且先前消失的反应再次出现。在以前的研究中，当重复复苏过程时，已经可靠地产生了复苏。然而，在程序的迭代过程中，回潮反应增加程度的变化并不一致，一些研究显示增加，而另一些研究显示回潮幅度没有变化或减少。本研究通过连续六次将四只鸽子暴露于复苏程序，检查了在传统复苏程序的重复迭代中复苏的性质。在复苏程序的第一个条件下，在可变间隔 (VI) 30 秒的时间表下加强对一个键（例如，左侧）的啄食。在第二种情况下，对那个键的啄击被熄灭，而对另一个键（例如，右键）的啄击在相同的时间表下得到加强。在最终条件下，任何一种反应都没有程序化后果。在 24 个机会中的 21 个（87.5%）中观察到了复苏。在 20 个机会中的 15 个 (75.0%) 中观察到了复苏的反复迭代增加，并且发现这种增加具有统计学意义。这些发现表明，在某些条件下，随着反复暴露于产生它的程序，复苏的幅度通常会增加。在 24 个机会中的 21 个（87.5%）中观察到了复苏。在 20 个机会中的 15 个 (75.0%) 中观察到了复苏的反复迭代增加，并且发现这种增加具有统计学意义。这些发现表明，在某些条件下，随着反复暴露于产生它的程序，复苏的幅度通常会增加。在 24 个机会中的 21 个（87.5%）中观察到了复苏。在 20 个机会中的 15 个 (75.0%) 中观察到了复苏的反复迭代增加，并且发现这种增加具有统计学意义。这些发现表明，在某些条件下，随着反复暴露于产生它的程序，复苏的幅度通常会增加。